Kaitlin Olson is very good at what she does on It's Always Sunny In Philadelphia, including sinking into a bog in one take.

Kaitlin Olson says her kids are "really not happy" about their dad Rob McElhenney changing his name. The 'It's Always Sunny ...

Kaitlin Olson is so hilarious as Dee on It's Always Sunny in Philadelphia that it's impossible to think of anyone else in the ...

"It's Always Sunny in Philadelphia" returns tonight at 9 p.m. ET on FXX with the Season 17 premiere and a must-see comedy ...

Kaitlin Olson reacted to her husband, Rob McElhenney, changing his name to Rob Mac during an interview with PEOPLE at the 'It ...

Kaitlin Olson is best known for her long-running role as Dee on It's Always Sunny in Philadelphia, but she also shines in ...

Rob McElhenney’s new last name has high potential. But for his wife and “It’s Always Sunny in Philadelphia” co-star, Kaitlin ...

Danny DeVito has played the deranged con artist Frank Reynolds on It’s Always Sunny in Philadelphia. The greedy, gun-toting character has tortured and mercilessly exploited his (legal, not biological) ...

Although chaos often unfolds for the gang in ‘It’s Always Sunny in Philadelphia,’ many cast members have been happily married ...

Kaitlin Olson is mostly known for acting in the popular TV series Hacks and High Potential. The actress' husband Rob ...

Kaitlin Olson has assembled a list of 'tamer' It's Always Sunny in Philadelphia episodes for newcomers interested in watching ...

Olson and McElhenney, who play Dee and Mac on the FX sitcom, tied the knot in 2008 and went on to welcome sons Axel, 14, and ...